What do you call the movement of substances across the membrane without the use of the cell's energy...active transport or passive transport?

passive transport

The movement of substances across the plasma membrane from as area of high concentration to low concentration is called...diffusion or osmosis?

diffusion

The diffusion of water from high to low concentration is....

osmosis

What do you call the movement of substances across the plasma membrane that requires the use of cell's energy and carrier molecules? Moving from low to high concentration? passive or active transport?

active transport

endocytosis is...

large particles are brought into the cell

exocytosis is...

large particles leave the cell

When water moves in and the cell bursts is called...

hypotonic

When water moves out and the cell shrivels is called...

hypertonic

When there is no net movement, the cell maintains equilibrium is called...

isotonic

What do you call the self-regulating mechanism that maintains internal conditions?

homeostasis

homeostasis is...

internal equilibrium

How do cells communicate their needs with each other?

through the cell membrane by releasing chemical messengers that tell the hypothalamus gland in the brain that a change needs to be made in the interstitial fluid.

In homeostasis....negative feedback

glucose/insulin levels in cells

In homeostasis...positive feedback

blood platelets/blood clotting

What are biochemical reactions?

chemical bonds formed and broken within living things creating chemical reactions that impact the ability to maintain life and carry out life functions

What is cellular respiration?

food molecules are converted to energy

What is photosynthesis?

plant cells capture energy from the Sun and convert it into food(carbohydrates)

Plant cells convert the carbohydrates into energy during.....

cellular respiration

What is the ultimate source of energy for all living things?

the Sun

What is it called when cells are not provided with oxygen in a timely manner?

fermentation

What is ATP?

a molecule that stores and releases the energy when the cell needs it

What kind of respiration requires the presence of oxygen, release of energy from the breakdown of glucose, energy released is used to make ATP, and takes place in almost all living things?

aerobic respiration

What kind of respiration occurs in the absence of oxygen, breakdown of food substances, produces less energy, often called fermentation, and is seen as an adaptation for organisms that live in environments that lack oxygen?

anaerobic respiration

Cellular respiration or photosyntheis? Food is broken down and energy is released.

cellular respiration

Cellular respiration or photosyntheis? Food synthesized and energy from Sun stored in glucose

photosyntheis

Photosynthesis or Chemosynthesis? Food synthesized and energy from Methane or Inorganic Material.

Chemosythesis

What are special proteins that regulate every biochemical reaction in the cell?

enzymes

What factors affect enzymes?

pH, temperature, and quantity

Enzymes function to: build new _____ and aid in _________.

cells and aid in digestion

Does photosynthesis or cellular respiration occur in all living things?